javaoop i/o将天气情况记录到文本文件中并读取代码

以下是一个简单的 Java OOP I/O 代码示例，用于将天气情况记录到文本文件中并读取：

import java.io.*;

public class WeatherLogger {
    private String fileName;

    public WeatherLogger(String fileName) {
        this.fileName = fileName;
    }

    public void logWeather(String weather) {
        try {
            FileWriter writer = new FileWriter(fileName, true);
            writer.write(weather + "\n");
            writer.close();
        } catch (IOException e) {
            System.out.println("Error writing to file: " + e.getMessage());
        }
    }

    public String readWeatherLog() {
        StringBuilder sb = new StringBuilder();
        try {
            BufferedReader reader = new BufferedReader(new FileReader(fileName));
            String line;
            while ((line = reader.readLine()) != null) {
                sb.append(line).append("\n");
            }
            reader.close();
        } catch (IOException e) {
            System.out.println("Error reading from file: " + e.getMessage());
        }
        return sb.toString();
    }
}

使用示例：

WeatherLogger logger = new WeatherLogger("weather_log.txt");
logger.logWeather("Sunny");
logger.logWeather("Cloudy");
logger.logWeather("Rainy");

String weatherLog = logger.readWeatherLog();
System.out.println(weatherLog);

输出：

Sunny
Cloudy
Rainy